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  • Title: Structure Revision of Two Polyoxygenated Sterols from the Marine Sponge Neofibularia nolitangere.
    Author: Yaoita Y, Kikuchi M, Machida K.
    Journal: Nat Prod Commun; 2015 Jun; 10(6):881-3. PubMed ID: 26197507.
    Abstract:
    Careful reexamination of the published 1H- and 13C-NMR spectral data of (24S)-24-ethylcholest-8-ene-3β,5α,6β,7α-tetraol (1) and (24S)-24-ethylcholest-8(14)-ene-3β,5α,6β,7α-tetraol (2), isolated from the marine sponge Neofibularia nolitangere, indicates that, in reality, compounds 1 and 2 are (24S)-5α,6α- epoxy-24-ethylcholest-8-ene-3β,7α-diol (9) and (24S)-5α,6α-epoxy-24-ethylcholest-(14)-ene-3β,7α-dio (10), respectively.
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